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Metal fusion welding technology

A welding and crafting technology, applied in metal processing equipment, welding equipment, manufacturing tools, etc., can solve problems such as inability to protect and achieve the effect of quality assurance

Inactive Publication Date: 2017-06-09
赵敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

, but this kind of electrode with coating can only choose different coatings for different metal materials, especially for alloy materials, it cannot play a good protective role

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The metal fusion welding process of the present invention, the specific steps are: the first step, pickling the welding surface of the weldment, removing oil stains or rust on the surface of the weldment, etc.; the second step, spraying high-temperature resistant sealing on the welding end of the weldment Materials, the components and weight ratio of the high temperature resistant sealing material are: epoxy resin or modified epoxy resin: 50 parts; nanomaterials: 10 parts; diluent: 10 parts; solvent and curing agent: 80 parts; the third step 1. Set an insertion sleeve with a vacuum suction port on the inner surface of the welding port, connect a vacuum pump to the outside of the vacuum suction port, insert the weldment into the sleeve and heat the welding end of the weldment, and connect the welding port of the weldment through the vacuum pump Air extraction, while the weldment is heated to a molten state for welding; the fourth step is to clean the high-temperature-resi...

Embodiment 2

[0015] The metal fusion welding process of the present invention comprises the following steps: the first step, pickling the welding surface of the weldment, removing oil stains or rust on the surface of the weldment;

[0016] The second step is to spray high-temperature-resistant sealing material on the welding end of the weldment except the end face. The components and weight ratio of the high-temperature-resistant sealing material are: epoxy resin or modified epoxy resin: 80 parts; nanomaterials: 8 parts; Diluent: 8 parts; Solvent and curing agent: 60 parts;

[0017] The third step is to install an insertion sleeve with a vacuum suction port on the inner surface of the welding port, connect a vacuum pump to the outside of the vacuum suction port, insert the weldment into the insertion sleeve and heat the welding end of the weldment, and weld the weldment through the vacuum pump The welding port is exhausted, and the weldment is heated to the molten state for welding at the ...

Embodiment 3

[0020] The metal fusion welding process of the present invention comprises the following steps: the first step, pickling the welding surface of the weldment, removing oil stains or rust on the surface of the weldment;

[0021] The second step is to spray high-temperature-resistant sealing material on the welding end of the weldment except the end face. The components and weight ratio of the high-temperature-resistant sealing material are: epoxy resin or modified epoxy resin: 80 parts; nanomaterials: 5 parts; Diluent: 5 parts; Solvent and curing agent: 20 parts;

[0022] The third step is to install an insertion sleeve with a vacuum suction port on the inner surface of the welding port, connect a vacuum pump to the outside of the vacuum suction port, insert the weldment into the insertion sleeve and heat the welding end of the weldment, and weld the weldment through the vacuum pump The welding port is exhausted, and the weldment is heated to the molten state for welding at the ...

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PUM

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Abstract

The invention discloses a metal fusion welding process, which is characterized in that the steps are as follows: the first step, pickling the welding surface of the weldment; the second step, spraying a high-temperature resistant sealing material on the welding end of the weldment except the end surface; third Step 1. Set an insertion sleeve with a vacuum suction port on the inner surface of the welding port, connect a vacuum pump to the outside of the vacuum suction port, insert the weldment into the sleeve and heat the welding end of the weldment to weld in a molten state; the fourth step , Clean the high temperature resistant sealing material sprayed on the surface of the weldment. The fusion welding process of the present invention adopts spraying high-temperature-resistant sealing material on the welding end except the end surface, and sets the welding port in the insert sleeve. When metal welding, on the one hand, the contact surface between the molten metal and the external atmosphere becomes extremely It is small, and the sleeve is placed on the accessible welding end surface to extract air, so that it can be better isolated from the air during welding and ensure the quality of welding.

Description

technical field [0001] The invention relates to a metal welding process, in particular to a metal fusion welding process. Background technique [0002] Fusion welding is a method in which the workpiece interface is heated to a molten state during the welding process and the welding is completed without pressure. During fusion welding, the heat source will rapidly heat and melt the interface between the two workpieces to be welded to form a molten pool. The molten pool moves forward with the heat source, and forms a continuous weld after cooling to connect the two workpieces into one. During the fusion welding process, if the atmosphere is in direct contact with the high-temperature molten pool, the oxygen in the atmosphere will oxidize the metal and various alloying elements. Nitrogen and water vapor in the atmosphere enter the molten pool, and defects such as pores, slag inclusions, and cracks will be formed in the weld during the subsequent cooling process, which will de...

Claims

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Application Information

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IPC IPC(8): B23K20/14B23K20/24B23K20/26
CPCB23K20/14B23K20/24B23K20/26
Inventor 赵敏
Owner 赵敏
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